WO2019021259A1 - Revêtement d'amorce destiné à un substrat en plastique rempli de fibres - Google Patents

Revêtement d'amorce destiné à un substrat en plastique rempli de fibres Download PDF

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Publication number
WO2019021259A1
WO2019021259A1 PCT/IB2018/055649 IB2018055649W WO2019021259A1 WO 2019021259 A1 WO2019021259 A1 WO 2019021259A1 IB 2018055649 W IB2018055649 W IB 2018055649W WO 2019021259 A1 WO2019021259 A1 WO 2019021259A1
Authority
WO
WIPO (PCT)
Prior art keywords
class
fiber filled
producing
paintable
filled substrate
Prior art date
Application number
PCT/IB2018/055649
Other languages
English (en)
Inventor
Benjamin Barber
Ganesh SINGH
Original Assignee
Magna Exteriors Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magna Exteriors Inc. filed Critical Magna Exteriors Inc.
Publication of WO2019021259A1 publication Critical patent/WO2019021259A1/fr
Priority to US16/456,600 priority Critical patent/US20190322827A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
    • C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09D161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C09D161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine

Definitions

  • the present invention relates to a primer coating for fiber filled plastic substrates used in an exterior show surface of a vehicle.
  • Fiber filled thermoformed compositions are increasingly more common in manufacture of vehicle body panels, lift gates, hoods, and other vehicle parts. In many cases these parts are lighter than their steel counter parts and therefore offer a weight advantage. Often fiber filled substrates are manufactured as structural back panels or sub frames and it is necessary to provide an outer paintable Class "A” show surface over the underlying fiber filled structural substrate. This is because there has not been a useable and/or cost effective way to provide a Class "A" finish on these parts.
  • typically fiber filled substrates are the structural part of a vehicle body panel or the like with an outer show surface skin. Therefore, extra time and other processes are required for manufacture and bonding of the two pieces together.
  • surfaces of the fiber filled materials have not been found suitable for painting and forming a Class "A" exterior surface of a vehicle.
  • a goal of the present invention is to provide a painting system for a fiber filled substrate that allows a Class "A” show surface on the final part.
  • a method for producing a Class "A" painted surface on a fiber filled substrate vehicle part includes the steps of:
  • a primer for providing a primed fiber filled substrate vehicle part with a Class "A" paintable surface is also provided wherein the primer is a flexible coating on the fiber filled substrate which includes from about 70 to 100% by weight of a first cross-linkable resin selected from the group of polyurethane, polyester, melamine, and acrylic resins and mixtures thereof and from about 1 to about 30% of a second compatible cross- linkable isocyanate resin preferably a monomeric urethane isocyanate resin.
  • the present invention uses an unpigmented flexible primer which improves the appearance of the final Class "A" surface of a show surface of a part made from a fiber filled polymer material.
  • the primer flexibility maintains a Class "A” show surface of SW less than 50 to provide a suitable show surface even during thermal expansion and contraction of the substrate.
  • a method for producing a Class "A" paintable surface on a fiber filled substrate vehicle part includes:
  • a primer for providing a primed fiber filled substrate vehicle part with a Class "A" paintable surface is also provided wherein the primer is a flexible coating on the fiber filled substrate which includes from about 70 to 100% by weight of a first cross-linkable resin selected from the group of polyurethane, polyester, melamine, and acrylic resins and mixtures thereof and from about 1 to about 30% of a second compatible cross- linkable isocyanate resin preferably a monomeric urethane isocyanate resin.
  • the substrates useful in the present invention typically include fiber filled polymer materials normally used as structural parts in vehicle body panel.
  • One such material is a sheet molding composition substantially filled with between 1 " and 3" glass fibers.
  • Other materials in which the invention is useful include thermoplastic olefins substantially filled with chopped carbon and/or long glass fibers and molded into a final part which includes a Class "A" surface as a part of the final molded part molded out of the fiber filled material.
  • Other chopped carbon fiber filled thermoset or thermoformed polymer parts will find the present invention advantageous.
  • the primers of the present invention are also useful on carbon fiber filled materials.
  • Such filled carbon fiber materials include 35% to 65% by weight sheet molding composition and 35% to 65% by weight .5" to 2.5" carbon fibers.
  • the flexible primer comprises a clear melamine primer layer.
  • Flexible primers made in accordance with the present invention must be capable of having the ability to build up a film to a 50 micron thickness without sagging while maintaining the SW of generally less than 50, typically less than 35 and in preferably less than 15.
  • flexible primer coating is a two component high solids leveling primer material which includes generally from about 70 to 100% by weight of a first cross-linkable resin selected from the group of polyurethane, polyester, melamine, and acrylic resins and mixtures thereof and from about 1 to about 30% by weight of a second compatible cross-linkable isocyanate resin preferably a monomeric urethane isocyanate resin.
  • a material meeting the criteria of the present invention is an SX 1056 flexible 2K sealer and SX 1058 2K primer catalyst available from PPG Automotive Resins mixed in the above ratios.
  • the first component is a high solids material containing greater than
  • the sag control agent is a polyurea having fine crystalline needles in its structure.
  • Test panels were prepared in accordance with the chart in Table 1 using the Urethane SX 1056 primer and SX 1058 catalyst in a 4 to 1 ratio by weight. A primer coat was applied over a glass filled SMC surface. After curing for 30 minutes at 80 degrees centigrade, urethane based automotive base coats and top coats are applied over the primed surface and then cured in accordance with Table 1. As shown in the chart the SW results are greater than 15 with the first test panel being 43.2 and the second test panel being 25.
  • Flexible urethane primers are mixed in with catalyst in amounts of 70, 80, 90 and 99% by weight of a first cross-linkable resin selected from the group of polyurethane, polyester, melamine, and acrylic resins and mixtures thereof and from about 1 , 10, 20, and 30% by weight of a second compatible cross-linkable isocyanate resin preferably a monomeric urethane isocyanate resin.
  • a first cross-linkable resin selected from the group of polyurethane, polyester, melamine, and acrylic resins and mixtures thereof and from about 1 , 10, 20, and 30% by weight of a second compatible cross-linkable isocyanate resin preferably a monomeric urethane isocyanate resin.
  • a sag control agent in weights of 8, 9, 10, 1 1 and 2 percent by weight in the first component.
  • These primers are applied to various thermoplastic fiber filled substrates in coatings of up to about 50 microns and cured. Thereafter standard urethane base automotive grade base coats and top coats are applied

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un procédé destiné à la production d'une surface pouvant être peinte de classe "A" sur une partie de substrat remplie de fibres, le procédé fournissant une partie polymère remplie de fibres présentant une surface de présentation externe destinée à être utilisée sur un véhicule. Ladite partie est revêtue d'un revêtement d'amorce souple sensiblement exempt de pigments, destiné à former une surface amorcée apte à être peinte destinée à former une surface de présentation de classe "A" destinée à un véhicule.
PCT/IB2018/055649 2017-07-27 2018-07-27 Revêtement d'amorce destiné à un substrat en plastique rempli de fibres WO2019021259A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/456,600 US20190322827A1 (en) 2017-07-27 2019-06-28 Primer coating for fiber filled plastic substrate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762537759P 2017-07-27 2017-07-27
US62/537,759 2017-07-27

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/456,600 Continuation-In-Part US20190322827A1 (en) 2017-07-27 2019-06-28 Primer coating for fiber filled plastic substrate

Publications (1)

Publication Number Publication Date
WO2019021259A1 true WO2019021259A1 (fr) 2019-01-31

Family

ID=65040048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/055649 WO2019021259A1 (fr) 2017-07-27 2018-07-27 Revêtement d'amorce destiné à un substrat en plastique rempli de fibres

Country Status (3)

Country Link
US (1) US20190322827A1 (fr)
CA (1) CA3062463A1 (fr)
WO (1) WO2019021259A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757173A1 (fr) * 2019-06-28 2020-12-30 Magna Exteriors Inc. Couche primaire pour substrat en plastique rempli de fibres

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3694716A2 (fr) 2017-10-27 2020-08-19 Entrotech, Inc. Procédé d'application d'un film polymère à un substrat et articles obtenus
CN111542563B (zh) 2017-10-27 2022-12-27 安特科技有限公司 用于将聚合物膜施用至基底的方法及所得的物品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5120415A (en) * 1990-02-09 1992-06-09 E. I. Du Pont De Nemours And Company Method of improving the properties of coated reinforced thermoplastic articles and products obtained thereby
DE10249916A1 (de) * 2002-10-26 2004-05-13 Bayerische Motoren Werke Ag Lackaufbau für Kunststoffteile, Verfahren zu dessen Herstellung und dessen Verwendung
WO2006015198A1 (fr) * 2004-07-30 2006-02-09 E.I. Dupont De Nemours And Company Compositions d'amorces tres solides a base de polymerisation de radicaux libres initiee thermiquement
US7763679B2 (en) * 2005-09-22 2010-07-27 E.I. Du Pont De Nemours And Company Adherent coating compositions for resinous substrates
US9884976B1 (en) * 2004-08-19 2018-02-06 Red Spot Paint & Varnish Co., Inc. Coating compositions and methods, and articles coated with same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5120415A (en) * 1990-02-09 1992-06-09 E. I. Du Pont De Nemours And Company Method of improving the properties of coated reinforced thermoplastic articles and products obtained thereby
DE10249916A1 (de) * 2002-10-26 2004-05-13 Bayerische Motoren Werke Ag Lackaufbau für Kunststoffteile, Verfahren zu dessen Herstellung und dessen Verwendung
WO2006015198A1 (fr) * 2004-07-30 2006-02-09 E.I. Dupont De Nemours And Company Compositions d'amorces tres solides a base de polymerisation de radicaux libres initiee thermiquement
US9884976B1 (en) * 2004-08-19 2018-02-06 Red Spot Paint & Varnish Co., Inc. Coating compositions and methods, and articles coated with same
US7763679B2 (en) * 2005-09-22 2010-07-27 E.I. Du Pont De Nemours And Company Adherent coating compositions for resinous substrates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757173A1 (fr) * 2019-06-28 2020-12-30 Magna Exteriors Inc. Couche primaire pour substrat en plastique rempli de fibres

Also Published As

Publication number Publication date
CA3062463A1 (fr) 2020-12-28
US20190322827A1 (en) 2019-10-24

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